analysis.java
Class Raster

java.lang.Object
  |
  +--analysis.java.Raster

public class Raster

extends java.lang.Object

Class to handle Raster object and methods to read file to/from Raster; also includes methods for accessing data values

Constructor Summary

Raster()
Creates a generic Raster object

Raster(int rows, int cols)
Creates a Raster object; with a set number of rows and columns

Raster(java.lang.String rasterfile)
Creates a Raster object from a tab-delimited text file

Method Summary

int	getCol(int id) Get column at cell id
float	getData(int id) Get value at position id
float	getData(int i, int j) Get value at row i, col j
int	getID(int row, int col) Get id at row i, col j
int	getNumCols() Get number of columns in Raster
int	getNumRows() Get number of rows in Raster
int	getRow(int id) Get row at cell id
void	read(java.lang.String rasterfile) Read tab-delimited file into Raster object
void	setData(float value, int id) Enter value at cell id
void	setData(float value, int row, int col) Enter value at row i, col j
java.util.ArrayList	toArrayList(analysis.java.Raster raster, int keepValue) Convert a binary Raster (e.g.
analysis.java.Raster	toRaster(java.util.ArrayList list, int rows, int cols) Convert an ArrayList to Raster
analysis.java.Raster	toRaster(java.util.TreeMap tree, int rows, int cols) Convert a TreeMap to Raster

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Raster

public Raster()

Creates a generic Raster object

Raster

public Raster(java.lang.String rasterfile)

Creates a Raster object from a tab-delimited text file

Parameters:

rasterfile - full path name for text file

Raster

public Raster(int rows,
              int cols)

Creates a Raster object; with a set number of rows and columns

Parameters:

rows - number of rows

cols - number of columns

Method Detail

getData

public float getData(int i,
                     int j)

Get value at row i, col j

Parameters:

i - row #

j - column #

Returns:

value at row i column j

getData

public float getData(int id)

Get value at position id

Parameters:

id - cell number

Returns:

value at row i column j

setData

public void setData(float value,
                    int row,
                    int col)

Enter value at row i, col j

Parameters:

value - value to be entered

row - row #

col - column #

setData

public void setData(float value,
                    int id)

Enter value at cell id

Parameters:

value - value to be entered into raster at cell id

id - cell id where value is to be entered

getID

public int getID(int row,
                 int col)

Get id at row i, col j

Parameters:

row - row #

col - column#

Returns:

cell id

getRow

public int getRow(int id)

Get row at cell id

Parameters:

id - cell id for which row# is sought

Returns:

row#

getCol

public int getCol(int id)

Get column at cell id

Parameters:

id - cell id for which column# is sought

Returns:

column#

getNumRows

public int getNumRows()

Get number of rows in Raster

Returns:

number of rows

getNumCols

public int getNumCols()

Get number of columns in Raster

Returns:

number of columns

toArrayList

public java.util.ArrayList toArrayList(analysis.java.Raster raster,
                                       int keepValue)

Convert a binary Raster (e.g. road file) to ArrayList

Parameters:

raster - Raster object to be converted

keepValue - binary value that is to be retained, e.g. "1" or "0"

Returns:

an ArrayList of cell id's

toRaster

public analysis.java.Raster toRaster(java.util.ArrayList list,
                                     int rows,
                                     int cols)

Convert an ArrayList to Raster

Parameters:

list - name of ArrayList to be converted

rows - # of rows in Raster

cols - # of columns in Raster

Returns:

a Raster object

toRaster

public analysis.java.Raster toRaster(java.util.TreeMap tree,
                                     int rows,
                                     int cols)

Convert a TreeMap to Raster

Parameters:

tree - name of TreeMap to be converted

rows - # of rows in Raster

cols - # of columns in Raster

read

public void read(java.lang.String rasterfile)

Read tab-delimited file into Raster object

Parameters:

rasterfile -